140542351650 has 72 divisors (see below), whose sum is σ = 377644444164. Its totient is φ = 37472601600.

The previous prime is 140542351619. The next prime is 140542351687. The reversal of 140542351650 is 56153245041.

140542351650 is a `hidden beast` number, since 1 + 4 + 0 + 542 + 3 + 51 + 65 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 114752240001 + 25790111649 = 338751^2 + 160593^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3888462 + ... + 3924438.

Almost surely, 2^140542351650 is an apocalyptic number.

140542351650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140542351650 is an abundant number, since it is smaller than the sum of its proper divisors (237102092514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140542351650 is a wasteful number, since it uses less digits than its factorization.

140542351650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44676 (or 44668 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 140542351650 its reverse (56153245041), we get a palindrome (196695596691).

The spelling of 140542351650 in words is "one hundred forty billion, five hundred forty-two million, three hundred fifty-one thousand, six hundred fifty".